Hi Allen, not sure if you're question is still actual, hope yes.
I would suggest you make sure that whatever you decide to do in Kraków (job, freelance, starting up, etc), you're convinced of that and make some investigations about the market. There's a lot to explore here, so for sure you'll find your way.
Social life is sweet too.
I recommend living in the city, Kazimierz for example. It's a whole experience living in this part of the city.
Wish you a great time in Kraków!